Trusted Sources

Google Knowledge Graph: Entity isReference Domains

Dataset: 62,202 isReference domains | entities

Proprietary analysis of Google's entity validation patterns across the Knowledge Graph.

The Google leak in May 2024 confirmed that Google explicitly associates people with their profile pages (isReference) and articles they have written (isAuthor).

⚠️ You Can't Use Just ANY Domain!

Out of 1,738,093 domains we monitor, only 62,202 qualify as isReference domains.

3.65%

Only 3.65% of domains earn isReference status from Google. Domain selection is critical.

Key concepts:

Wikipedia is NOT Required (or even your best bet)

Wikipedia: 6 million entities
Kalicube Pro: 71 million entities
Knowledge Graph: 50 billion entities

0.012%

Wikipedia covers only 0.012% of the Knowledge Graph. If your entity isn't in that 0.012%, you need to build a Knowledge Panel with ~30 isReference url instead.

📊 Kalicube's Entity Validation Dataset

1,738,093
Domains Checked Regularly
62,202
isReference Domains
3.58% qualify
23,295,240
URLs Monitored
72,412,850
Entities Tracked

💡 Even Small Niche Domains Have isReference Authority

Examples from our dataset (December 2025):

kalicube.com 21 entities
searchengineland.com 11 entities
jasonbarnard.com 86 entities
searchenginejournal.com 270 entities
entrepreneur.com 1,292 entities
forbes.com 2,823 entities

Your niche-specific domains may have similar authority in your category.

Top 100 isReference Domains for All Entity Types

Rank Domain Entity Count
1 wikipedia.org 3,338,056
2 linkedin.com 424,194
3 twitter.com 408,213
4 amazon.com 179,558
5 namu.wiki 145,558
6 facebook.com 130,563
7 instagram.com 128,892
8 x.com 113,138
9 allocine.fr 102,673
10 deezer.com 56,496
11 youtube.com 42,130
12 google.com 34,730
13 wiktionary.org 32,934
14 isfdb.org 28,728
15 trustpilot.com 22,345
16 britannica.com 20,801
17 yahoo.com 19,899
18 legacy.com 18,917
19 gutenberg.org 18,489
20 reddit.com 16,552
21 crunchbase.com 14,994
22 dictionary.com 14,151
23 fandom.com 11,852
24 microsoft.com 9,926
25 wikiquote.org 9,826
26 metacritic.com 9,603
27 tiktok.com 8,725
28 rottentomatoes.com 8,478
29 uk.com 8,407
30 apple.com 8,099
31 famousbirthdays.com 7,650
32 letterboxd.com 6,473
33 espn.com 6,450
34 indeed.com 6,298
35 justwatch.com 6,180
36 quora.com 6,036
37 pinterest.com 5,983
38 github.com 5,950
39 webuy.com 5,888
40 imdb.com 5,797
41 fifa.com 5,612
42 wikia.com 5,255
43 mit.edu 4,985
44 vikidia.org 4,831
45 history.com 4,771
46 reuters.com 4,744
47 wikiwand.com 4,741
48 netflix.com 4,711
49 house.gov 4,635
50 spotify.com 4,549
51 plus.lefigaro.fr 4,538
52 premiere.fr 4,496
53 nintendo.com 4,357
54 theguardian.com 4,357
55 cambridge.org 4,256
56 bloomberg.com 4,087
57 bbc.co.uk 4,057
58 awards.com 4,008
59 forbes.com 3,867
60 investing.com 3,850
61 ca.gov 3,791
62 soundcloud.com 3,792
63 linkedin.cn 3,746
64 billboard.com 3,680
65 meta.com 3,606
66 shopee.co.id 3,597
67 dell.com 3,553
68 last.fm 3,412
69 vocabulary.com 3,333
70 bbc.com 3,249
71 ign.com 3,235
72 thesaurus.com 3,241
73 baseball-almanac.com 3,216
74 shopee.ph 3,158
75 coach.com 3,081
76 playstation.com 3,015
77 go.com 2,951
78 nih.gov 2,923
79 bio-on.it 2,917
80 treated.com 2,900
81 nasa.gov 2,891
82 genius.com 2,697
83 google.com.br 2,686
84 example.com 2,604
85 inc.com 2,577
86 independent.co.uk 2,569
87 a-artist.com 2,539
88 discovery.ca 2,526
89 radiofrance.fr 2,507
90 rateyourmusic.com 2,504
91 hotels.com 2,478
92 itv.com 2,461
93 rs-online.com 2,424
94 wikisource.org 2,391
95 dailymail.co.uk 2,358
96 chess.com 2,315
97 washington.edu 2,278
98 diesel.com 2,237
99 notrecinema.com 2,226
100 oracle.com 2,194
101+ 62,102 additional niche-specific domains in full dataset covering 66,756,653 additional entities

Why This Data Matters

Google validates entity information through patterns of corroborating mentions across trusted domains. This list shows where Google recognizes all entity types - but here's the catch: entity authority is extremely niche-specific.

Entity Validation at Scale

Google's Knowledge Graph requires consistent entity recognition across validated domains.

  • Only 3.65% of domains (62202 out of 1738093) qualify as isReference
  • Brands typically need ~30 entity-validated url for a stable Knowledge Panel
  • Each niche has unique entity authority patterns
  • Generic "authority lists" miss 95%+ of niche-specific opportunities

⚠️ This Free List is Intentionally Limited

The top 100 domains shown above are dominated by massive generalist sites. For 99% of brands, the real opportunities lie in the niche-specific domains that only appear in our full platform dataset.

Recommended Reading:

🔐 Find YOUR Niche-Specific isReference Domains

We monitor 23M+ URLs across 1.7M domains to identify the exclusive 3.65% that qualify as isReference domains for 72M+ entities. The Kalicube Pro platform maps your competitive landscape and identifies your niche-specific opportunities in 15 minutes.

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